Commit 93797d87 authored Dec 12, 2011 by Rob Herring

irq: check domain hwirq range for DT translate



A DT node may have more than 1 domain associated with it, so make sure
the hwirq number is within range when doing DT translation.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>

parent 3ecdd051

kernel/irq/irqdomain.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -135,6 +135,9 @@ int irq_domain_simple_dt_translate(struct irq_domain *d,
		return -EINVAL;
		if (intsize < 1)
		return -EINVAL;
		if (d->nr_irq && ((intspec[0] < d->hwirq_base) \|\|
		(intspec[0] >= d->hwirq_base + d->nr_irq)))
		return -EINVAL;

		*out_hwirq = intspec[0];
		*out_type = IRQ_TYPE_NONE;